Process for making reenforced-concrete walls



Jan. s 192s. 1,568,265

C. CARRILLON PROCESS FOR MAKING REENFORCED CONCRETE WALLS lFiled Feb. 9, 1924 J f l monnfrs Patented Jan. 5, 1926.

UNITED STATES lsaazas.

PATENT OFFICE.

CHARLES CARRILLON, F ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO JOSEIH M. KLAMIOIII',` OF ST. LOUIS, MISSOURI.

PROCESS FOR MAKING REENFORCED-CONCRETE WALLS.

Application filed February 9, 1924.

o all wlw/1n it may concern.:

Be it known that I, CHARLES CARRILLON, a citizen of the United States, and a resident of the cityof St. Louis and, State o fMissouri, have invented anew and usefulImprovement in Processes for Making Reenforced-Concrete Walls, of which, the following is al full, clear, and exact description.

My invention relates to improvements in reenforced lconcrete wall sections ,and process for making the same, and it consists in the steps hereinafter disclosed, and in the combinations, constructions, and arrangements herein described and claimed.

An object of my invention is to provide a concrete wall section and the process for n'iaking the same by means of which an entire section of the building may be manufactured in one` piece. Heretofore blocks have been manufactured which are provided with air spaces, but it has not beenpractica-l to manufacture such blocks in'large sections. My present invention embodies a means for constructing entire sections which are durable enough to permit the manipulation of the entire section, as in erecting they section.

A further object of my inventionV is to provide a novel means for obtaining an air space between the walls of thesection without sacrificing strength.

A further object of my invention is to provide a reenforced concrete wall section, .having ,an air space, by a simple process, obviating the use of special forms and the various means for holding the reenforcing elements while. the sections are constructed.

A further object of my invention is to provide a process for manufacturing reenforced concrete wall sections that is economical and thoroughly practical commercially.

Other objects and advantages will appear in the following specification, and the novel features of the invention will be particularly pointed out in theappended claims.

i My'invention is illustrated in the accompanying drawings, kforming part of this application, in which Figure 1 isa sectional view of oneof the wall sections while it isA still in a supporting surface during the hardening or setting process,

Figure 2 is a sectional view of the wall section with the sand core and the side walls of the supporting form removed,

Figure 3 is a side elevation of one of the Serial No. 691,764.

' sectionsin a vertical position and partially 1, if the platform be concrete, or any substance to which wet concrete may adhere in setting, is greased. Side walls 2 are constructed and fixed to the platform 1 or may be an integral part of the platform as in the present case. The side walls 2 are provided to prevent the lateral displacement of materials which are placed upon the platform.

The first step in constructing my improved reenforced wall section is to place a layer 3 of concrete directly upon the platform 1. This layer in the ordinary casevis approximately one inch thick. I next lay a metal screen 4 upon the layer of concrete 3. The general appearance of this screen is indicated in Figure 3 and will kbe recognized as the'ordinary type of wire lath in common use. rIhe screen is'bent upwardly at either end, as shown at 5, and has its upper extremities turned inwardly, as shown at 6, at a predetermined distance from the main portion ofthe screen 4. The upwardly bent portions 5 are substantially parallel with the side walls 2 and adjacent to the side walls. A`

Y I next place a second layer of concrete `7 substantially one inch thick upon the screen 3. This layer 7 is placed upon the screen immediately after 'the application of the screen to the wet layer 3.

A plurality of angular convoluted iron rods 8 are fashioned so that each rod has parallel portions 9 and IOarranged in stag- Lgered relation one to another, the portions 9 being in alinement and the portions 10 being in alinement with one another. The rod 8 is constructed of sufficient diameter to lend the necessaryV strength to the completed section, and if the section be a large section, the rods 8 should be of'a diameter proportional to the required strength of the section. The convoluted rods 8 are placed in parallel relation one to another and are pressed downwardly into the soft concrete layer 7 until they are in close proximity with the screen 4. As will be noted from Figures 1 and 2, the parallel portions 10 alone are submerged in the soft concrete,

lil() layer I-..

I next place a layer of concrete 13 upon the layer ot sand 12 so as to entirely cover the portions 9 and rise substantially one inch ivcr the portions 9V o't the rod 8.

The material thus placed on the platform 1 is permitted torstand for the necessary time required in the thorough setting and hardening of thc concrete. Ordinarily this time approximately fourteen days.

Nhen the time for removing the coinpleted section from the Yplattorfni 1 has arrived, the side Walls Q are removed and the sand l2 is washed from between the spaced apart concrete walls 3 7, andV 13, and the section has the appearance shown in Figure 2. Figure 2 is a sectional view.

From the foregoing description of the various steps in the process, the application' thereof will be readily understood. It Will be well to'explain at this time that the Ysection formed may be of any desired shape. In Figure 3 I have Yshovvn a section which may be usedVV as an Yend or side Wall ot' a garage or small house, the tapered'portions la being provided so as to accommodate the roof construction. ,Y

The reenforced concretewall section constructed in my improved process is exceedingly strong, since the reenforcing rods S have engagement with each of the spaced apart conciete Wa ls 3 7, and 13, and therefore there is little or no possibility of breakage through manipulation exercised with ordinary care. Heretofore the concrete Wall sections have necessarily been constructed tor small areas alone. This has been a necessity, since the construction employed up to the present time has consisted in the use o't individual reent'orcing members in place. of relatively long convoluted reenforcing rods 8.

The upwardly bent portions oi the screen 4 not only serve to strengthen the sections at their opposite edges, but also greatly facilitate the securing of the wall sections one to another, as in the intersection of tivo sections to form a corner. The mortar or cement used to secure the two sections may be embedded directly in the Walls 5 et the screen a, and thereby insure a secure and permanent fixing ot the sections one to another.

A t'ter the cement or concrete in the wall sections has become thoroughly hardened and the section is removed from the plat`n form, the sand layer '1Q is Washed from between the adjacent sides of the concrete Walls, thus leaving a section which when the edgesthereofare closed, has a. dead air space in the interior thereof. The provision ot' this dead air space Vin Wall sections of the character described serves as a most important insulating means for confining heat Within the building constructed of the sections and for keeping the building cool in the summer time against the penetration ot' heat from Without. Y

It is obvious that a metal screen, simil-ai to the screen et, could be used in the Wall portion 13 shown in Figures 1 and 2jthis screen being disposed adjacent to the parallel portions of the convoluted iron rods 8 in the manne-r simil-ar to the rscreenV -1 in the companion wall portion, kWithout departing from the spirit of the invention. In

insteadot one, as shown. Such a form is shown in Figure L In this figure, the upper portionf 13 is provided with a screen la embedded therein similar to the'screen a in the lower portion3. This screen portion lies adjacent lto the parallel portions 9 ot the rods 8.

I claim:

1. The herein described steps in the process of forming a hollow concrete wall section, which consists in depositing a layer of concrete, in placing on said layer a reenforcing screen in embedding said screen with asupeiposed layer of concrete, having reenforc- Ving means extending upwardly therefrom, in covering said last named layer with a layei' oi sand to partially cover said reen'torcing member, placing a layer of concrete on the layer of sand in contact with the upper end of said reenforcing member, and removing the sand when the concrete has set.

2. The hereindescribed steps in the process ot forming a hollow conci-ete Wall section which consists in depositing a layer ot concrete and in placing on said layer a reen- `forcing screen, in embedding said screen with a super-posed layer of concrete, having reenforcing means extending upwardly therefrom, in covering said last named layer With a layer or sand to partially cover said reenforcing member, in placing a layer of concrete on the layer of sand in contact with the upper end of said reentorcing member. in placing on said layer a reenforcing screen, in embedding said screen with a supe-rposed layer of concrete, and in removing the sand when the concrete is set.

CHARLES CARRILLON.

Itact, Where a strong construction is desired,l Y' it is preferable to use two screen portions 

